According to the tropical cyclone influencing laws of Western Pacific and the South China Sea on Wenchang from 1959 to 2005, this paper summarizes the distribution characteristics of tropical cyclone in time and space; analyzes climatic general situation of tropical cyclone landing and influencing Wenchang. This article also analyzes the tropical cyclone season and intensity distribution of Hainan launch site and briefly introduces usable information resources of tropical cyclone at home and abroad, which provides a foundation for the Hainan launch site construction and meteorological support.